   "
   [key value & kvs]
   (let [options (apply hash-map key value kvs)]
-    (check-valid-options options :user :ssh-options :scp-options :rsync-options)
+    (check-valid-options options :user :ssh-options :scp-options :rsync-options :parallel)
     (swap! *global-options* merge options)))
   
 (defn clear-options!

      (alength p)
      3)))

(defn do-begin [args]
  (when-exit (< (count args) 2)
             "Please offer cluster and task name"

                   task-name (keyword (second args))
                   task-args (next (next args))
                   cluster (cluster-name @clusters)
                   parallel (is-parallel? cluster)
                   user (:user cluster)
                   addresses (:addresses cluster)
                   clients (:clients cluster)
